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Claix API · AI systems and agents

Claix API

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Agent mode

Ask questions about the document|Claix gives you the answers

Ask any questions you need about the document content. Claix answers them and returns structured, typed information ready to be consumed directly by your system or AI agent.

Pick a question or let it cycle automatically

Typed response

agent_data.jsonagent_data
Integrate free into your flow in 5 minutes

Capabilities

Invisible infrastructure. Structured outcomes.

  • Invisible to end users

    Your customer sees your brand, logo, and product. Claix never appears in the UI. Behind the scenes, our intelligent AI mapping engine does the heavy lifting.

  • API-first by design

    One REST endpoint for systems, backends, and AI agents. No mandatory SDKs. Integrate into your CRM, ERP, or automation stack with a single HTTP call.

  • MCP server for agents and IDEs

    Connect Claix to Cursor, Claude Desktop, or Windsurf in one click. Let your AI agents process PDFs and spreadsheets automatically via our MCP protocol.

    View API/MCP documentation →

  • Free embeddable widget

    A widget you can optionally embed in your own interface, fully customizable and adapted to your branding. Unlimited use.

  • GDPR from Stockholm

    EU servers. AI mapping runs under GDPR with zero file retention and no model training.

  • Zero maintenance for you

    We manage the AI engine, semantic mapping, and scaling. You focus on selling your product—not maintaining data pipelines.

Flow architecture

From free tier to production without friction

A linear path for systems and AI agents: start for free, connect the API to your stack, delegate normalization to Claix, and operate on validated data while your team focuses on the product.

  1. 01

    Frictionless onboarding

    Free signup, instant API Key issuance, and access to the semantic normalization environment with no upfront infrastructure cost.

  2. 02

    REST integration in your pipeline

    Inject a single HTTP endpoint into your CRM, ETL, n8n, or Make. Multipart payload in, typed JSON out—no proprietary SDKs or tight coupling.

  3. 03

    Schema delegation

    Claix interprets the semantic intent of messy sources, applies strict validation, and returns structures ready to persist in your database.

  4. 04

    Operational reliability

    Managed engine, versioned mapping, automatic scaling, and GDPR compliance. Forget maintaining parsers, transform rules, or fragile pipelines.

  5. 05

    Business scaling

    Deterministic normalized data on every request. Less tech debt, fewer ingestion errors, and more capacity to scale product and B2B customers.

Pricing

Pay-per-success. You only pay for what works.

200 OK → charged401 / 403 → free400 / 422 → free5xx → free

15 successful calls free — plenty of room to integrate Claix into your stack without spending a cent.

Semantic normalization of spreadsheets and CSV into typed JSON schemas.

Excel → JSON

Price per successful call based on processed variables

Variable = rows or columns Claix interprets per request.

Variables€ / call
First 15 successful€0.00
0 – 5,000€0.25
5,000 – 10,000€0.30
10,000 – 50,000€0.40
50,000 – 100,000€0.50
100,000 – 1M€0.60
1M and above€1.00

Deploy now

Typed data for systems and AI agents.

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FAQ

Claix is a B2B Data Normalization API: a semantic middleware that transforms PDF, Excel/CSV, Word/text, and images into strictly typed JSON with AI, ready to inject into your database. Official site: https://www.claix.dev

Create an account, define an excel-json schema, send a multipart POST to https://www.claix.dev/api/excel-json with your file (.xlsx, .csv) and schema_id. Claix interprets columns with AI and returns validated JSON.

Yes. POST /api/pdf-json (PDF, €0.35), /api/doc-json (.docx/.txt/.md/.rtf, €0.20), and /api/img-json (JPEG/PNG/WebP/HEIC, €0.10) after the 15 free successful calls. Each requires a matching schema type.

Product teams, developers, and agencies integrating data normalization into CRM, ERP, SaaS, or n8n/Make flows without maintaining fragile parsers or their own AI infrastructure.

Pay-as-you-go per successful call (HTTP 200 only). The first 15 are free. Excel↔JSON: €0.25–€1.00 by variables. PDF €0.35, Doc €0.20, Img €0.10. 4xx/5xx errors are not billed.

No. Authentication errors (401/403), validation or syntax errors (400/422), and server failures (5xx) are not billed.

Yes. Claix is API-first and invisible to end users. It also includes a free unlimited iframe widget you can brand and embed; JSON is delivered to your HTTPS webhook.

Summary: https://www.claix.dev/llms.txt · Full knowledge base: https://www.claix.dev/llms-full.txt · OpenAPI: https://www.claix.dev/openapi.yaml · Human docs: https://www.claix.dev/en/documentation

Agent Mode adds a second inference phase on the document: besides structured field extraction, Claix reasons over the content and returns an agent_data block with typed answers (booleans, numbers, strings) according to the rules you define in agent_definition.

Enable is_agent_mode on your schema, define agent_definition with the fields you want to evaluate (e.g. penalty_clause as boolean), and optionally resumen_agent. Call the /agent/*-json endpoints; you receive data[] with extraction and agent_data with reasoning.

PDF, Excel/CSV, Word/text documents, and images via agent-pdf-to-json, agent-excel-to-json, agent-doc-to-json, and agent-img-to-json (public paths /agent/pdf-json, /agent/excel-json, etc.).

Normal extraction maps visible document fields to your schema. Agent Mode adds semantic inference: it evaluates conditions, summarizes clauses, or answers business questions returning typed JSON — no free text or schema drift.